What is today's weather forecast for Vashon Island, WA?

Today's forecast for Vashon Island shows a low of 42 degrees Fahrenheit. Rain, mainly before 4am.

What is the 7-day weather forecast for Vashon Island, WA?

The 7-day forecast for Vashon Island shows highs from 42 to 51 degrees and lows from 36 to 42 degrees Fahrenheit. Expect precipitation on 8 days with chances of 20% or higher.

Will it rain in Vashon Island, WA this week?

Yes, rain is possible in Vashon Island this week. Precipitation chances: Wednesday (80% chance), Thursday (100% chance), Friday (90% chance), Saturday (90% chance), Sunday (50% chance), Monday (50% chance), Tuesday (50% chance), Wednesday (50% chance).

How accurate is the Vashon Island weather forecast?

WeatherForYou provides highly accurate Vashon Island forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Vashon Island, WA Weather Forecast and Current Conditions

WEATHER ALERTS - Flood Watch - Special Weather Statement - Wind Advisory

Current Conditions From Nearby Local Station

Switch to Metric Units

43°F
Feels Like 40°F

Humidity 94% Dew Point 41°F Wind S 5 MPH Gusts 7 Barometer N/A

Report from a MADIS/MESONET weather station 1.2 mi. SSW of central Vashon Island
at 2:20 AM Thu, Dec 18, 2025

Point Forecast at a Glance

WedDec 17

80%

ThuDec 18

100%

FriDec 19

80%

SatDec 20

90%

SunDec 21

50%

MonDec 22

50%

TueDec 23

50%

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 43°F to 51°F. Unsettled weather expected with rain likely on at least 7 days.

Climate Context

This week's forecast shows temperatures running 1°F below the historical average for December. Normal highs for this period are around 46°F with lows around 35°F.

This Date in Weather History

1957 - A tornado swept across Jackson County, Williamson County and Franklin County in southern Illinois killing eleven persons.

Vashon Island, WA 7 Day Weather Forecast Details

Wednesday Dec 17

Night: Rain, mainly before 4am. Low around 42. South wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Thursday Dec 18

Day: Rain. High near 51. South wind 11 to 21 mph, with gusts as high as 48 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Night: Rain, mainly before midnight. Low around 38. Southwest wind 10 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Friday Dec 19

Day: Rain. High near 43. South southwest wind 10 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Night: Rain. Low around 39. South southwest wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

Saturday Dec 20

Day: Rain. High near 44. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Night: Rain. Low around 40. Chance of precipitation is 80%.

Sunday Dec 21

Day: Rain. Cloudy, with a high near 44.

Night: Rain. Cloudy, with a low around 40.

Monday Dec 22

Day: Rain. Cloudy, with a high near 44.

Night: Rain. Mostly cloudy, with a low around 38.

Tuesday Dec 23

Day: Rain likely. Mostly cloudy, with a high near 44.

Night: A chance of rain. Mostly cloudy, with a low around 36.

Wednesday Dec 24

Day: A chance of rain. Mostly cloudy, with a high near 42.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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